title: When kin correlations are not squared.
authors.forename: T J
authors.initials: TJ
authors.lastname: Bouchard
authors.forename: D T
authors.initials: DT
authors.lastname: Lykken
authors.forename: M
authors.initials: M
authors.lastname: McGue
authors.forename: N
authors.initials: N
authors.lastname: Segal
authors.forename: A
authors.initials: A
authors.lastname: Tellegen
mesh_terms: D014644:Genetic Variation; D005838:Genotype; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D014430:Twins, Monozygotic / Q000235:genetics*